PPC64: map Uni-North AGP bus aka fix Linux boot

Uni-North AGP device mapping was accidentally dropped in
2e29bd04786003561303dcad940b38afe790fb9b.

Map the device.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/hw/unin_pci.c b/hw/unin_pci.c
index e1cd2a3..fe13e7b 100644
--- a/hw/unin_pci.c
+++ b/hw/unin_pci.c
@@ -171,11 +171,21 @@
 
     /* Uninorth AGP bus */
     pci_create_simple(d->host_state.bus, 11 << 3, "Uni-north AGP");
+    dev = qdev_create(NULL, "Uni-north AGP");
+    qdev_init_nofail(dev);
+    s = sysbus_from_qdev(dev);
+    sysbus_mmio_map(s, 0, 0xf0800000);
+    sysbus_mmio_map(s, 1, 0xf0c00000);
 
     /* Uninorth internal bus */
 #if 0
     /* XXX: not needed for now */
     pci_create_simple(d->host_state.bus, 14 << 3, "Uni-north internal");
+    dev = qdev_create(NULL, "Uni-north internal");
+    qdev_init_nofail(dev);
+    s = sysbus_from_qdev(dev);
+    sysbus_mmio_map(s, 0, 0xf4800000);
+    sysbus_mmio_map(s, 1, 0xf4c00000);
 #endif
 
     return d->host_state.bus;